Finding the Fourth Proportional to 151.47, 209.01 and 89.29

Step by Step Solution

1. Step 1: Write the proportion equation
   151.47 : 209.01 = 89.29 : x
2. Step 2: Convert to fraction form
   151.47/209.01 = 89.29/x
3. Step 3: Cross multiply
   151.47x = 209.01 × 89.29
4. Step 4: Simplify right side
   151.47x = 18,662.50
5. Step 5: Solve for x
   x = 18,662.50/151.47
6. Step 6: Final answer
   x = 123.21